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How To Change The Default SSH Port in CentOS

How To Change The Default SSH Port in CentOS, the default SSH port is 22 ,you can change the default SSH port , you can easily do it.you need to make a little change on sshd_config files. The default port number is 22 & now we are going to change it to 1155.Step 1: Open the SSH config file.

/etc/ssh/sshd_config

Add a New line with your New port. please see following the picture , I have added a new line ( Port 1155 ) under the line , #port 22 . you can change port from 22 to any other. I have changed the port 22 to 1155.

— #port 22 Port 1155 —

now save it , & now your new port is 1155.

Step 2: Reload SSH Service

service sshd reload

Its done , you can verify the new port by this command :

netstat -tulpn | grep sshd

You should see two entries with the status of “LISTEN” With new port.

Note: If you have firewall on server , Please ensure you update your firewall/iptables and ensure the new port is allowed for incoming connections.